40664840

素因数分解:

$2^3\times 5^1\times {\mathrm{1016621}}^1$

素因数の和:1016632

約数の個数: 16

約数和(自身を含む): 91495980

約数和(自身を除く): 50831140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1016621, 2033242, 4066484, 5083105, 8132968, 10166210, 20332420, 40664840]

約数ペア:

[(1, 40664840), (2, 20332420), (4, 10166210), (5, 8132968), (8, 5083105), (10, 4066484), (20, 2033242), (40, 1016621)]